Spring bed-bottom and manufacture of the same



APPLICATION FILED AUG-27. l9l1.

Patented Aug. 26, 1919.

WITNESS.

V fw A rrolezwi Y JOSEPH P. LEGGETT, OF CARTHAGE, MISSOURI.

SPRING BED-BOTTOM AND MANUFACTURE OF THE SAME.

Specification of Letters Patent.

Patented Aug. 26, 1919.

Application filed August 27, 1917. Serial No. 188,325.

To all whom it may concern: 1

Be it known that I, JOSEPH P. Lnoon'r'r, a citizen of the United States, residing at Carthage, in'the county of Jasper and State of Missouri, have invented a certain new and useful Improvement in Spring Bed- Bottoms and Manufacture of the Same, of which the following is a specification. My invention relates to improvements in spring bed bottoms and manufacture of the same.

The object of my invention is to provide a spring" bed bottom having great strength, durability and resiliency, which is cheap to manufacture, which is light and not liable to get out of order or become loose-jointed and rickety. A

A further object of my invention is to provide a novel, cheap and eflicient method ofimaking my improved spring bed bottom.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawing, which illustrates my improved bed bottom and the method of making the same,

Figure 1 is a perspective view of a portion of a spring bed bottom embodying my improvement.

Fig. 2 is a vertical sectional view showing a'portion of one of the transverse tie members, a portion of one of the coil springs and the securing means therefor mounted on a longitudinal supporting member in the positions occupied by such parts prior to the setting down operation.

Fig. 3 is a view similar to Fig. 2, showing the securing means set down and the tools for effecting the setting down operation.

Fig. 4: is a View similar to Fig. 2 showing the parts in the positions occupied by them after the setting down operation, the securing device, spring and transverse tie member being shown in elevation.

Fig. 5 is a plan view of the longitudinal and transverse members and the securing device shown in Fig. 2 and a portion of a modified form of coil spring.

Similar reference characters designate similar parts in the different views.

My improved bed bottom is provided with a plurality of longitudinal supporting members, preferably comprising each a flat roll steel bar 1 which preferably possesses considerable resiliency and is disposed edge up.

Engaging and preferably extending through holes provided therefor in the members 1 are aplurality of transverse tie members, each consisting preferably of' a re silient wire 2, preferably provided at its intersection of the member 1 with an upstanding arch 3.

At each intersection of the members'l and 2 isa spring 4, preferably an inverted cone spring having a substantially horizontal coil 5' which rests upon the upperedge of the member 1 and which is provided with a downwardly turned end 6 which engages one side of the bar 1 for holding the spring from turnin axially. a

At the intersections of the members 1 and 2, there are provided separate securing means for fasteningthe springs to the members 1 and 2. V

All of the securing means are alike, as are the coil springs, so that a'description of'the means for securing one of the springs to the members 1 and2 will s illice for all.

Each securingj means comprises, preferably, a V-shaped member havin two arms 7, each provided at its upper on with adateral projection 8. Prior to the settin down operation, the arms 7 are substantially parallel with each other and'embrace opposite sides of the member '1, as shown in Fig." 2.

Each arm 7 is provided with a transverse hole 9, through which extends the arch 3 of the-adjacent transverse member 2.

The parts havingbeen assembled as shown in F ig. 2, with the lower coil 5 of the spring resting upon the upper edge of the member 1, theparts thus assembled'are mounted on an anvil 10, Fig. 3, with the lower ends of the arms 7 mounted in a groove 11 in the upper side of the anvil 10.

A setting down tool 12 provided with a V-shaped lower end having a vertical groove 13 for receiving the member 1, and provided with a transverse groove 14 for receiving the transverse member 2, has its V or wedgeshaped lower end inserted between the arms 7 after which the setting down tool 12 is forced downwardly to the position shown in Fig. 3, in which position it will have forced the arms 7 and coil 5 to the positions shown in Fig. 3, in which the arms 7 will respectively engage the upper sides of the coil 5 and will hold said coil depressed and under tension at opposite sides of the member 1.

lVhen the arms 7 are set down as above described, they will swing freely, at first,

over the arch 3, the holes 9 being sufficiently large for this to be efiected, until the arms engagethe coil 5, at which time they. Will also engage the transverse member 2 at opposite sides of themember" land will'slightly depress and tightly embrace and hold under tension the member 2'.

In the Setting down operat on, the arms 7 will be forced by the anvil 10 to tightly embraee opposite sides respectively of the member l,"thus'hold ,i ng said member from tipping l e ally angles-tothe axis of the'spring, the setverse tie member 2.

After th "setting down operation, the

memb ss la d c il 15" nd he u n 'meinbei-willbe held r'i'gidly together by reason of the permanent tension which has been'imparted'to the 'eoil Band trans;

In thefform pr: my invention shown in we a he s m e i isf h a as t at shown Fig. 4, with'the exception that the spring '5; w i h s lar o th. pr nghas its bottom 'co'il l6 extended' tq more than a single co nvellltion and has parallel peftiens. g ging n bf the a ms 7 a the ide hereof, H 9 e of t spring havingan upturned portion 17 which sa es-es 1 e f. he a e t a e Ween. th spree is ad h w n Fi he bw 'rbeil re i d sposed a right ting down operation does not tilt the spring. In the; form shown Fig, 4, an initial inclination to the horizontal is given the lower a t e r g .9 t n th setting w Wer -t e t e Spring W l e-br i ht as ere t es ti The engagement with the -shaped mem;

' er'ha ing e't o. a ms i h o tii iinel lem lend? th t an rse tie member 2 111 addition to serving" to secure the spring, also serves to holdv the bed botem. in it i t a g ed ter e imi a the necessity of using diagonal braces for this purpose.

I do not limit my invention to the structure shown and described, nor to the precise steps set forth, as modifications, within the scope of the appended claims, may be made vwithout departing from the spirit of my inve t o What I claim is 1. In a spring bed bottom, a longitudina supporting member having a transverse hole, a V-shaped securing member embrae ing the sides and lower edge of the longitudinal member, each arm of the securing m m r having a tra s e se h e a e r'in having a coil supported by the upperiedge of the longitudinal member, and atrans verse tie member extending through the holes in' said arms and said longitudinal member and holding the Vshap edsecuri'ng mem p pe y posit ne n h lohjgi? tiidinal member, the arms of the member. being depressedsoas to hold'the iei ver e' tie m m er-11 11 wesisifl d holding the 11 under ten ion at opposite sides respectively of the longitudinal mem ber. V 2. In a spring bed bottom,a longitudinal supporting member, av shap'ed member'em bracing the sides and lower edge of the Qopie s of this patent may be obtained f0; five cents each, by addressing the Commissio of Patents,

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